Edwin l



(No Model.) 2 Sheets--Sheet 1.

E. L.'GRAY 85 G. D. WRIGHT.

EXTENSION SCREEN.

No. 355,605. Paten'ted Jan.4,1887.

mg x 4 (No Model.) 2 Sheets-Sheet 2 E. L.v GRAY & G. D. WRIGHT.

EXTENSION SCREEN.

No. 355,605. Patented Jan. 4,1887.

N1TED STATES P TENT EEIGE.

EDWIN L. GRAY AND GEORGE E. WRIGHT, OF BURLINGTON, vr, ASSIGNORS TO THE.PoRTER MANUE oTURiNe COMPANY, OF sAME PLAoE.

EXTENSION-SCREEN.

$PECIFICATION' forming part of Letters Patent No. 355,605, dated January4-, 1887.

Application filed August 27, 1686. Serial No. 211,987. (No model.)

To all whom, it may .cncern:

Be it known that we, EDWIN L. GRAY and GEORGE D. WRIGHT, of Burlington,inthe State of Vermont, have invented a certain 5 new and usefulImprovement in Extension- Screens, of which the following is aspecification. v

The object of this inventionis to provide an extension-screen readilyadjustable to windows or other openings of varying sizes.

Extension screens, broadly considered are old and are not here claimed.

The invention consists in a novel construction and combination of theparts which make I 5 up the screen. The screen proper is provided at topand bottom with grooved guide rails, and on each side of the screen isan extension-strip mounted and adapted to slide in said rails andprovided with stops, which, in conjunction with stops on theguide-rails,

limit the range of movement of each extension-strip. V v

The nature of the improvement, however, can best be explained byreference to the ac- 2 5 companying drawings, in which-- Figure 1 is aplan of the screen, represent-.

ing in dotted lines the extension-strip in extended condition,andpartsbeing broken away. Fig. 2 is an end elevation of the screen.Fig.

3 is a section on line 3 3, Fig. 1. Fig. 4 is a perspective view of oneof the extensionstrips, looking at its inner-face. Fig. 5 is a sectionof the screen proper on line 5 5, Fig.

1, with the extensionstrips removed, in order to show more clearlythelower guide-rail. The screen proper consists of a rectangular frame,A, of any proper construction, upon which is secured the wire gauze ornetting B. Upon that face of the frame to which the edges of the gauzeare secured are fastened to two opposite bars of the frame theguiderails O, of equal length with the bars, and forming finishingstrips or beads to cover the edges of thejgauze attached to said bars.At

4 5 each end of each rail a guide-recess, a, of proper length, is madein the face adjoining the screen, thus forming a groove, one side ofwhich is bounded by the screen proper, and

' the other side by' the body of the rail. The

part, b, adjoining the groove constitutes-a 5o tongue to enter a groovein the extension-strip, as hereinafter described.

When the rails are in place on the frame, the guide grooves and tonguesof the one rail face those of the other rail, said grooves and tonguesbeing in the interior opposite edges of the two rails. Between theseguide-rails, and at opposite ends of the screen proper, are mounted theextension-strips D. These strips, upontheir external faces, in lengthequal that of the sides of the screen to which they are applied andoverlap the guide-rails. At each end they are tongued and grooved, asshown, having the groove 0 to receive the tongue I) of the guide-rail,and the tongue (I to enter the groove a of said rail. At the inner endof each tongue (I is a lug or extension, 6, of greater depth than therest of the tongue, which constitutes one part of a stop to limit theoutward movement of the exten- 7o sion-strip, the other part of the stopbeing formed by a pin or stud,f, which is driven through thescreen-frame, so as to extend crosswise of the groove (4 a little abovethe bottom and near the outer end of said groove.

The stop for limiting the inward movement of the extension-strip isformed by the inner end of the rail-tongue d and the closed inner end orshoulder, a, of the guide-rail groovea.

Each extension -strip. is provided, preferably, with a thumb-socket, g,or other suitable means, to allow it to be conveniently manipulated.

In this way an extension-screen is obtained which is cheap, durable, andsimple of manufacture. The rails and extension-strips cost little andare most easily fitted and applied, and they not only give the screenits extensi- 'ble character, but also serve to cover and fino ish thatface of the frame A upon which the edges of the screen are secured.

Having described theimprovement, what is claimed is The combination,with thescreen -frame, of the guide-rails 0, provided with guide tonguesand grooves on their interior opposite edges, as described, the slidingextensionstrips D, overlapping the guide-rails exter- V In testimonywhereof We have hereunto set nally, and providedbn their inner faceswith our hands this 24th day of August, 1886. tongues and grooves toengage those of the v EDWVIN L. GRAY. guide-rails, and stops to limitthe movement GEORGE D. WRIGHT.

5 of said strips, these parts being constructed Witnesses:

and arranged for joint operation substantially BENJAMIN F. VAN VLIET, asherein shown and described.

I WILLIAM H. H. OONNER.

